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benhoob |
1.1 |
%\subsection{Non $t\bar{t}$ Backgrounds}
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%\label{sec:othBG}
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| 3 |
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| 4 |
benhoob |
1.2 |
Backgrounds in which one or both leptons do not originate from
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benhoob |
1.3 |
electroweak decays (fake leptons) are assessed using the method
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of Ref.~\cite{ref:top}. A fake lepton is a lepton candidate
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benhoob |
1.2 |
originating from within a jet, such as a lepton from semileptonic $b$
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or $c$ decays, a muon decay-in-flight, a pion misidentified as an
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electron, or an unidentified photon conversion. Estimates of the
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contributions to the signal region from pure multijet QCD, with two
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benhoob |
1.3 |
fake leptons, and in $W+\mathrm{jets}$, with one fake lepton
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benhoob |
1.2 |
in addition to the lepton from the decay of the $W$, are derived
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separately. We find $0.00^{+0.04}_{-0.00}$ and $0.0^{+0.5}_{-0.0}$
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($0.00^{+0.04}_{-0.00}$ and $0.5 \pm 0.5$)
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for the multijet QCD and $W$+jets contributions to the high \MET\
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(high \Ht) signal regions, respectively, and thus
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consider these backgrounds to be negligible.
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| 18 |
benhoob |
1.1 |
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| 19 |
benhoob |
1.2 |
Backgrounds from DY are estimated with the data-driven $R_{out/in}$ technique~\cite{ref:top},
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which leads to an estimated DY contribution which is consistent with 0.
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Backgrounds from processes with two vector bosons and single top
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| 22 |
benhoob |
1.1 |
are negligible compared to dilepton $t\bar{t}$.
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